Great Plains YP1625 Material Rate - Manual (Page 67)

Great Plains Mfg., Inc.
63
11/23/2011 401-263B
Sprocket Indexing Charts - Metric
1. For: your 6- or 12-finger meter, and
your twin row spacing (76.2cm on this page)
find your seed rate in the Population column, or your
seed spacing in the Seed Spacing column. Seed
spacing is seed-to-seed within a single row of a twin
row pair.
2. At the front/forward row unit of a pair, set the driven
(final) sprocket of the meter drive so that tooth
stamped #1 is straight up (TDC, 12:00 position).
3. At the rear/trailing row unit of the pair, set the driven
sprocket so that the tooth number at “Rear Meter” is
in the straight up 12:00 position.
These are NOT seed rate or seed spacing charts. These are
charts for staggering seed spacing between the rows of a twin
row.
Note: For adjusting spacing between rows of the pair,
see “Indexing Fine Adjustment” on page 51.
Verify the 12:00 sprocket tooth position with the top length of
chain taut.
76.2cm Twin Row Sprocket Indexing
Null4: Null4:
6 Finger Meter Twin Row Sprocket Indexing
76.2cm (30in) Twin Row
Population Single Row
Seeds per Seed Front Rear
Hectare Spacing (cm) Meter Meter
38 795 to 42 748 67.6 to 61.5 1 4
42 748 to 46 455 61.5 to 56.4 1 7
46 455 to 50 408 56.4 to 52.1 1 10
50 408 to 54 362 52.1 to 48.3 1 13
54 362 to 58 316 48.3 to 45.0 1 16
58 316 to 61 775 45.0 to 42.4 1 19
61 775 to 65 729 42.4 to 39.9 1 3
65 729 to 69 929 39.9 to 37.6 1 6
69 929 to 73 883 37.6 to 35.6 1 9
73 883 to 77 837 35.6 to 33.8 1 12
77 837 to 81 543 33.8 to 32.3 1 15
81 543 to 85 744 32.3 to 30.7 1 18
85 744 to 89 450 30.7 to 29.5 1 2
89 450 to 93 404 29.5 to 28.2 1 5
93 404 to 97 110 28.2 to 26.9 1 8
97 110 to 100 817 26.9 to 26.2 1 11
100 817 to 105 018 26.2 to 24.9 1 14
105 018 to 108 724 24.9 to 24.1 1 17
108 724 to 112 183 24.1 to 23.4 1 1
112 183 to 116 137 23.4 to 22.6 1 4
116 137 to 120 091 22.6 to 21.8 1 7
120 091 to 124 538 21.8 to 21.1 1 10
124 538 to 127 998 21.1 to 20.6 1 13
127 998 to 131 704 20.6 to 19.8 1 16
Set Sprocket to
Tooth Number on ..
12 Finger Meter Twin Row Sprocket Indexing
76.2cm (30) Twin Row
Population Single Row
Seeds per Seed Front Rear
Hectare Spacing (cm) Meter Meter
65 729 to 69 929 39.9 to 37.6 1 4
69 929 to 73 883 37.6 to 35.6 1 7
73 883 to 77 837 35.6 to 33.8 1 10
77 837 to 81 543 33.8 to 32.3 1 13
81 543 to 85 744 32.3 to 30.7 1 16
85 744 to 89 450 30.7 to 29.5 1 19
89 450 to 93 404 29.5 to 28.2 1 3
93 404 to 97 110 28.2 to 26.9 1 6
97 110 to 100 817 26.9 to 26.2 1 9
100 817 to 105 018 26.2 to 24.9 1 12
105 018 to 108 724 24.9 to 24.1 1 15
108 724 to 112 183 24.1 to 23.4 1 18
112 183 to 116 137 23.4 to 22.6 1 2
116 137 to 120 091 22.6 to 21.8 1 5
120 091 to 124 538 21.8 to 21.1 1 8
124 538 to 127 998 21.1 to 20.6 1 11
127 998 to 131 704 20.6 to 20.1 1 14
131 704 to 135 905 20.1 to 19.3 1 17
135 905 to 139 859 19.3 to 18.8 1 1
139 859 to 143 812 18.8 to 18.3 1 4
143 812 to 147 519 18.3 to 17.8 1 7
147 519 to 151 472 17.8 to 17.3 1 10
151 472 to 155 426 17.3 to 17.0 1 13
155 426 to 159 132 17.0 to 16.5 1 16
Set Sprocket to
Tooth Number on ..